Answer :
Final answer:
The concept of combinations with repetition is useful when considering the different ways to select items where the same item can be chosen more than once. This can relate to mixing beverages or scoops of ice cream with repeated flavors. Measurements like scoops are used for efficiency and are analogous to scientific notation, which makes handling very large or small numbers more manageable. Thus Option 3 is Correct.
Explanation:
The student's about the number of scoops of matcha for a small iced matcha drink is not directly related to a mathematical concept, but I will provide an answer related to the math concept of combinations with repetition. When considering combinations with repetition, we must think of the possible ways to select items where repetitions are allowed. For instance, if we are making a blend of beverages or scoops of ice cream, and we are to choose three out of five flavors, we can end up with combinations like BBB, BBC, BCC, etc., given that we are allowed to repeat flavors.
If a product such as coffee or tea specifies using 3 scoops, it's because this measurement is more efficient than stating an exact number of granules or leaves. The same concept of efficiency in measurement units can be applied to scientific contexts. Using scientific notation helps scientists manage very large or very small numbers, using powers of ten to express the size of these numbers efficiently. As an example, expressing the number of red blood cells in a liter of blood or the diameter of an atom would be unwieldy if we didn't use scientific notation.
